Collection of tips to reduce construction costs

No, it was really only 3000 euros. It can't be bigger, then we would definitely slide out of the construction window. But don't ask me how he calculated that. Oh, I just saw another typo: one side was already at 14 m. So only the length has increased. An S-Bahn passes our property twice an hour. Noise protection plaster is required in the conditions because of this. It seems to be a special insulating mixture.

Is the internet down twice an hour at your place as well?
I know people who live near an S-Bahn and where some high-voltage cables of the railway are apparently laid parallel to the telephone/DSL cables.
The magnetic field causes their internet connection to drop briefly every time.
I would at least check that before subscribing to any streaming services, for example...

Thank you for the hint. But I don't think so. The railway runs 40 meters beside the road. It would be inconvenient to lay the cable there, especially by us. But I will ask the neighbors.

That doesn't have to be directly at the house; it's enough if the subsequent cables were laid in one go...

Our architect suggested building a garage out of wood (e.g. also as a DIY project), instead of having it massively walled during the house construction...

Our architect suggested building a garage out of wood (e.g. also as a DIY project), instead of having it built solidly with masonry during the house construction...

And did you then do it that way? If yes, what construction method and what does it look like from the outside? Feel free to also reply via PM.